/*
 *  Copyright (c) 2022-2023, Mybatis-Flex (fuhai999@gmail.com).
 *  <p>
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *  <p>
 *  http://www.apache.org/licenses/LICENSE-2.0
 *  <p>
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 */
package com.mybatisflex.core.query;

import com.mybatisflex.core.util.ClassUtil;
import com.mybatisflex.core.util.StringUtil;

import java.lang.reflect.Array;
import java.util.Collection;
import java.util.Map;

public class If {

    private If() {
    }

    /**
     * 判断对象是否为空
     */
    public static boolean isNull(Object object) {
        return object == null;
    }

    /**
     * 判断对象是否非空
     */
    public static boolean notNull(Object object) {
        return !isNull(object);
    }

    /**
     * 查看某个对象是否为空，支持数组、集合、map 等
     *
     * @param object
     */
    public static boolean notEmpty(Object object) {
        if (object == null) {
            return false;
        }

        if (object instanceof Collection) {
            return !((Collection<?>) object).isEmpty();
        }

        if (ClassUtil.isArray(object.getClass())) {
            return Array.getLength(object) > 0;
        }

        if (object instanceof Map) {
            return !((Map<?, ?>) object).isEmpty();
        }

        if (object instanceof String) {
            return StringUtil.isNotBlank((String) object);
        }
        return true;
    }


    /**
     * 查看某个对象是否为空数据 或者 null
     *
     * @param object
     */
    public static boolean isEmpty(Object object) {
        return !notEmpty(object);
    }


    /**
     * 查看某个 string 对象是否有文本内容
     *
     * @param object
     */
    public static boolean hasText(Object object) {
        return object != null && StringUtil.isNotBlank((String) object);
    }

}
